WTI prices continue to fluctuate with gusto, reacting to the ups and downs of the Iran nuclear talks, among other items. Negotiators in Switzerland have effectively stopped the clock, and they continue to negotiate, which is being taken as a good sign for now. The latest from the talks is that there is increasing pessimism, which is why oil prices have pared some of their overnight losses. The rally was also due to a major fire at an offshore Pemex oil platform.